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REPUBLIQUE
DEMOCRATIQUE DUDU
CONGO
REPUBLIQUE
DEMOCRATIQUE
CONGO
MINISTERE DES
DES RESSOURCES
RESSOURCES HYDRAULIQUES
HYDRAULIQUES ET
ET ÉLECTRICITÉ
ÉLECTRICITÉ
MINISTERE
Grand Inga Development Project – Production and Associated
Transmission Lines
GRAND INGA FEASIBILITY STUDY
Presented by: Stéphane St-Pierre, Co-Director
Grand Inga Project (AECOM)
Hydro 2013 – Addis Ababa
Grand Inga FeasibilityStudy
2013
16, 17, 18– Hydro
April
2013AddisAbaba, April 2013
REPUBLIQUE DEMOCRATIQUE DU CONGO
MINISTERE DES RESSOURCES HYDRAULIQUES ET ÉLECTRICITÉ
Grand Inga – Too big to be constructed ?
•
For 60 years, in spite of the potential of the site, all previous
schemes required considerable pre-investments in large civil
works, making the first MW expensive.
• It was found that the minimum economically feasible size was
7000 MW.
In 2011, Aecom-EDF was mandated by SNEL, with the funding of
ADB, to optimize the Grand Inga site, considering the proposed
Inga 3 project.
Grand Inga FeasibilityStudy – Hydro 2013
AddisAbaba, April 2013
REPUBLIQUE DEMOCRATIQUE DU CONGO
MINISTERE DES RESSOURCES HYDRAULIQUES ET ÉLECTRICITÉ
Grand Inga 2013 Feasibility Study : Main Results
A new approach has been proposed, making the development of
the Grand Inga economically feasible in the very short term:
• Innovative, flexible and economical staging identified
• Each phase as small as 2,000 MW at competitive costs
• Phase size can be adjusted to adapt to planned demand and
export opportunities
Grand Inga FeasibilityStudy – Hydro 2013
AddisAbaba, April 2013
REPUBLIQUE DEMOCRATIQUE DU CONGO
MINISTERE DES RESSOURCES HYDRAULIQUES ET ÉLECTRICITÉ
Grand Inga 2013 Feasibility Study : Main Results
•
Inga 3 replaced by a simpler Grand Inga first phase at low head
• with no closure of the Congo River and no tunnels, using an
open channel
• Integrating the final development of Grand Inga when river
dam is built in the future
 Turbine-generators designed to operate at low and high
head
 Bundi Dam and intake structures designed to be raised in
the future
Grand Inga FeasibilityStudy – Hydro 2013
AddisAbaba, April 2013
REPUBLIQUE DEMOCRATIQUE DU CONGO
MINISTERE DES RESSOURCES HYDRAULIQUES ET ÉLECTRICITÉ
Site Inga
Débit module: 41,000 m3/s
Chute = 100 m
Inga 1 (350 MW)
Inga 2 (1 424 MW)
Grand Inga FeasibilityStudy – Hydro 2013
AddisAbaba, April 2013
REPUBLIQUE DEMOCRATIQUE DU CONGO
MINISTERE DES RESSOURCES HYDRAULIQUES ET ÉLECTRICITÉ
Inga 3 basse chute
canal de transfert
barrage de la Bundi
Centrale Inga 3
P max : 4800 MW
Q max : 6600 m3/s
Grand Inga FeasibilityStudy – Hydro 2013
AddisAbaba, April 2013
REPUBLIQUE DEMOCRATIQUE DU CONGO
MINISTERE DES RESSOURCES HYDRAULIQUES ET ÉLECTRICITÉ
Inga 3 basse chute
remplissage du réservoir
Niveau d’eau amont : 145 - 170m
Grand Inga FeasibilityStudy – Hydro 2013
AddisAbaba, April 2013
REPUBLIQUE DEMOCRATIQUE DU CONGO
MINISTERE DES RESSOURCES HYDRAULIQUES ET ÉLECTRICITÉ
Inga 3 haute chute
Barrage sur le fleuve Congo
Évacuateurs de crues
Rehaussement du barrage Bundi
chute +50%
Pas de nouvelle centrale
P Inga 3 HC : jusqu’à 7800 MW
Grand Inga FeasibilityStudy – Hydro 2013
AddisAbaba, April 2013
REPUBLIQUE DEMOCRATIQUE DU CONGO
MINISTERE DES RESSOURCES HYDRAULIQUES ET ÉLECTRICITÉ
Inga 3 haute chute
Remplissage du réservoir
Niveau d’eau amont : 202 – 205 m
Grand Inga FeasibilityStudy – Hydro 2013
AddisAbaba, April 2013
REPUBLIQUE DEMOCRATIQUE DU CONGO
MINISTERE DES RESSOURCES HYDRAULIQUES ET ÉLECTRICITÉ
Inga 3
Grand Inga FeasibilityStudy – Hydro 2013
AddisAbaba, April 2013
REPUBLIQUE DEMOCRATIQUE DU CONGO
MINISTERE DES RESSOURCES HYDRAULIQUES ET ÉLECTRICITÉ
Inga 3 et 4
Grand Inga FeasibilityStudy – Hydro 2013
AddisAbaba, April 2013
REPUBLIQUE DEMOCRATIQUE DU CONGO
MINISTERE DES RESSOURCES HYDRAULIQUES ET ÉLECTRICITÉ
Inga 3, 4 and 5
Grand Inga FeasibilityStudy – Hydro 2013
AddisAbaba, April 2013
REPUBLIQUE DEMOCRATIQUE DU CONGO
MINISTERE DES RESSOURCES HYDRAULIQUES ET ÉLECTRICITÉ
Inga 3, 4, 5 et 6
Grand Inga FeasibilityStudy – Hydro 2013
AddisAbaba, April 2013
REPUBLIQUE DEMOCRATIQUE DU CONGO
MINISTERE DES RESSOURCES HYDRAULIQUES ET ÉLECTRICITÉ
Inga 7
Grand Inga FeasibilityStudy – Hydro 2013
AddisAbaba, April 2013
REPUBLIQUE DEMOCRATIQUE DU CONGO
MINISTERE DES RESSOURCES HYDRAULIQUES ET ÉLECTRICITÉ
Inga 3 à 8
Grand Inga FeasibilityStudy – Hydro 2013
AddisAbaba, April 2013
REPUBLIQUE DEMOCRATIQUE DU CONGO
MINISTERE DES RESSOURCES HYDRAULIQUES ET ÉLECTRICITÉ
canal de
transfert @
6,600 m3/s
Inga 3 basse chute
Centrale @ 4,800 MW
barrage
Bundi
Grand Inga FeasibilityStudy – Hydro 2013
AddisAbaba, April 2013
REPUBLIQUE DEMOCRATIQUE DU CONGO
MINISTERE DES RESSOURCES HYDRAULIQUES ET ÉLECTRICITÉ
• Progressive Development of Grand Inga
Grand Inga FeasibilityStudy – Hydro 2013
AddisAbaba, April 2013
REPUBLIQUE DEMOCRATIQUE DU CONGO
MINISTERE DES RESSOURCES HYDRAULIQUES ET ÉLECTRICITÉ
Grand Inga – New, small, economical multi-stage
development scheme
Main benefits:
•
•
•
•
To finally and rapidly start Grand Inga development
Flexibility to adapt to DRC and export demand patterns
Provide optimized generation costs at each stage by levelling
investments over time
Allow multiple public / private operators to share the site
Grand Inga FeasibilityStudy – Hydro 2013
AddisAbaba, April 2013
REPUBLIQUE DEMOCRATIQUE DU CONGO
MINISTERE DES RESSOURCES HYDRAULIQUES ET ÉLECTRICITÉ
INGA 3-LH: IMPACTS ON LAND USE
● Very low footprint on land: <19 km²; <0.5 ha/MW
● Favourable Land Use:
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


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100% of the installations within SNEL concession
Few forest (2.6 km²) and cultivated zone (1.8 km²)
Biodiversity without particular or exceptional character
No habitation affected
No involuntary population displacement
No infrastructure destruction
IMPACTS ON LAND USE VERY LIMITED
Grand Inga FeasibilityStudy – Hydro 2013
AddisAbaba, April 2013
REPUBLIQUE DEMOCRATIQUE DU CONGO
Number of inhabitants to relocate/MW
MINISTERE DES RESSOURCES HYDRAULIQUES ET ÉLECTRICITÉ
INGA 3-LH
Occupied Hectares /MW
Grand Inga FeasibilityStudy – Hydro 2013
AddisAbaba, April 2013
REPUBLIQUE DEMOCRATIQUE DU CONGO
MINISTERE DES RESSOURCES HYDRAULIQUES ET ÉLECTRICITÉ
INGA 3-LH: EIES CONCLUSIONS
● Site specific initial conditions very favourable
● Hydrology greater than the needs
● Negative Impacts identified are of low
intensity and manageable
● Potential Social and Economic Positive Impacts
Grand Inga FeasibilityStudy – Hydro 2013
AddisAbaba, April 2013